ORIGINAL: sachin998
Apologies for reviving such an old thread, but I just got this plane and would like some help. opjose please reply
I just test flew this plane and it did get off the ground without too much effort. I have a 46size electric motor mounted on the back with a 13x6.5 prop on a 5S pack. I have the motor pointing up a bit so I'm assuming after reading this thread that this helps it get off the ground. I took off knowing the plane was a bit nose heavy.
I'm not sure I understand you.
The motor does not need any additional up thrust ( rear or prop side of motor pointing a bit up ), it should be level with the mounting blocks/surface.
ORIGINAL: sachin998
When in straight line flight, I noticed the elevator had enough throw to get the nose pointing up/down, BUT it only comes back up after having to pull back on the elevator about 3/4 down.
I assume by "down" you are talking about STICK movement on your TX not elevator movement on the plane.
If so, have you set the elevator so that the trailing edge of the control surface is LEVEL with the top part of the forward part of the elevator?
This should give you just a bit of upward deflection of the elevator when the TX is at stick center.
This plane needs a bit of speed for the surfaces to be effective too so flying to slow will make it mush around a bit like what you are describing.
ORIGINAL: sachin998
It will keep pointing down with no movement until I reach that 3/4 point. I know the nose is heavy but I never experienced this before. It's almost like the nose does not want to come back up, but when it eventually does, it comes up quick!
I don't understand what you are saying... you say "it will keep pointing down with no movement".... what "points down"? The plane in flight ( it goes into a dive? )???
Check your linkages and surfaces it also could be that the servos are not moving the elevator up when the plane is in flight due to blowback forces.
Push a bit on the elevator as you move the stick back to raise the elevator... make sure the elevator comes up smoothly in spite of the slight force against it.
ORIGINAL: sachin998
My question here is, should I lift my ailerons up a few degrees to fix this?
No raising the ailerons kills lift, which we want for landings... but not for normal flight.
Your ailerons should be level at stick center.
ORIGINAL: sachin998
I will ensure its balaned properly on the next flight, but does this model require this ''up'' aileron to help up elevator controls? Does this plane experience difficulty in raising it's nose when pointed down?
No it reacts much like any other jet... it will not raise it's nose if it is going too slow, but at speed it reacts to stick inputs just fine.
Double check that C.G. ( with the tank EMPTY! ).
ORIGINAL: sachin998
Or do u suspect I'm seriously just nose heavy?
With the elevator set with the slight upward deflection as I mentioned before, the plane will fly hands off WITHOUT dropping the nose, at 50-70% throttle using the engine you have on it.
With a larger engine it takes even less throttle to keep it flying level.
ORIGINAL: sachin998
Also, should I add this up degrees on my ailerons to fix this problem,
Absolutely NOT!
The spoileron's are to help shorten landings and roll-out.
They kill lift, so that you can bring the plane in nose high, like a real jet, and keep the nose high after the main gear touch down.
The longer you can keep the front wheel off the ground the faster the plane stops.
ORIGINAL: sachin998
Will this ''spolieron'' I'm reading about not affect my takeoff. Ie. Will I not go vertical now on takeoff?
No, spoilerons are turned OFF for takeoff.
ORIGINAL: sachin998
Im also glad I read this forum. I set my flaps to go down on landings.. This would not work on this plane? Correct? I should make them go up 1/4 inch to get the nose up on landings?
Flaperons ( dropping both ailerons ) is a BAD idea for this plane.
Because of it's swept back wings, flaps will make the plane less stable at low speeds and make it mush even more just after take off.
Don't use them!
ORIGINAL: sachin998
For the record, first landing bent my 4mm retract legs badly. The landing was hard. I put in some some spring dampened oleos now, but there's still alot of work to be done to fix them nicely. I still find it amazing how much thinking and work can go into getting the landing gears to function correctly... It's been two weeks now and still working on every kink in my retract system..
Landings should be very smooth with this plane, but you must maintain throttle and airspeed.
Your "dropping nose" symptom may be working against you at landings.
Once you correct that, landings will be easier...
DO NOT attempt to use spoilerons until you have the nose drop problem sorted out, as spoilerons will only make a bad situation worst.